When you get bigger wheels you usually get thinner tires, so the overall circumference of the tire stays the same, same rotational ratio, blah blah blah. If you get a much bigger tire then yeah it can throw off your tachometer. Like alcheng said, shop techs can fix it for you.
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VLEDS | Evo-R | Moddiction | CF Hood Struts | F.I. CF CBE & LTH | Stillen CAI | NST Pulleys | UpRev | Z1 | M7 | Status | Forgestar | PSS | Whiteline | SPL | SPC | Kenwood | Zenclosure | Kicker | Alpine Type R
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